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From: Luc Pelletier <lucp.at.work@gmail.com>
To: grive@u256.net
Cc: dev@dpdk.org, stephen@networkplumber.org,
	konstantin.ananyev@huawei.com,
	Luc Pelletier <lucp.at.work@gmail.com>,
	Matan Azrad <matan@nvidia.com>,
	stable@dpdk.org
Subject: [PATCH v4 3/5] failsafe: fix double release of port
Date: Tue, 29 Nov 2022 10:25:15 -0500	[thread overview]
Message-ID: <20221129152516.4513-4-lucp.at.work@gmail.com> (raw)
In-Reply-To: <20221110163410.12734-1-lucp.at.work@gmail.com>

When a sub-device is hot-unplugged, rte_eth_dev_release_port is being
called twice. Once indirectly via rte_eth_dev_close and once explicitly.

Changed the code to remove the explicit call since it's not required and
results in mistakenly releasing port 0 (due to zero'ing of memory being
done in rte_eth_dev_release_port).

Fixes: fac0ae546e5f ("net/failsafe: free port by dedicated function")
Cc: Matan Azrad <matan@nvidia.com>
Cc: stable@dpdk.org

Signed-off-by: Luc Pelletier <lucp.at.work@gmail.com>
---
 drivers/net/failsafe/failsafe_ether.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/failsafe/failsafe_ether.c b/drivers/net/failsafe/failsafe_ether.c
index 517126565f..3bfc446638 100644
--- a/drivers/net/failsafe/failsafe_ether.c
+++ b/drivers/net/failsafe/failsafe_ether.c
@@ -301,8 +301,6 @@ fs_dev_remove(struct sub_device *sdev)
 		if (ret < 0) {
 			ERROR("Bus detach failed for sub_device %u",
 			      SUB_ID(sdev));
-		} else {
-			rte_eth_dev_release_port(ETH(sdev));
 		}
 		sdev->state = DEV_PARSED;
 		/* fallthrough */
-- 
2.38.1


  parent reply	other threads:[~2022-11-29 15:25 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-10 16:34 [PATCH] failsafe: fix segfault on hotplug event Luc Pelletier
2022-11-10 17:42 ` [PATCH v2] " Luc Pelletier
2022-11-10 23:33   ` Stephen Hemminger
2022-11-16 17:35 ` [PATCH] " Konstantin Ananyev
2022-11-16 21:51   ` Luc Pelletier
2022-11-16 22:25     ` Stephen Hemminger
2022-11-18 16:31       ` Konstantin Ananyev
2022-11-29 14:48 ` [PATCH v3 1/5] " Luc Pelletier
2023-10-31 17:35   ` Stephen Hemminger
2022-11-29 14:48 ` [PATCH v3 3/5] failsafe: fix double release of port Luc Pelletier
2022-11-29 14:48 ` [PATCH v3 4/5] failsafe: use public APIs in fs_link_update Luc Pelletier
2022-11-29 14:48 ` [PATCH v3 5/5] failsafe: make sub-device remove flag thread-safe Luc Pelletier
2022-11-29 15:25 ` [PATCH v4 1/5] failsafe: fix segfault on hotplug event Luc Pelletier
2022-11-29 15:25 ` Luc Pelletier [this message]
2022-11-29 15:25 ` [PATCH v4 4/5] failsafe: use public APIs in fs_link_update Luc Pelletier
2022-11-29 15:25 ` [PATCH v4 5/5] failsafe: make sub-device remove flag thread-safe Luc Pelletier

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